Spline Socket, Universal Spline Socket

Tien-i Spline socket design is compatible with all common fasteners: SAE, Metric, Hex, 6 Point, and 12 Point.
Carry fewer tools with our socket's wider range of applications.
Suitable for SAE and metric 6, 8, and 12 point hex, e-torx, square, splined, and damaged heads (25%).
Ideal applications like tamper-proof lug nuts, cylinder head bolts, and engine bolts.

Taiwan made Chrome Vanadium (CR-V) steel tempered with Tien-i proprietary heat treatment process to withstand more torque
Full Polish Nickel Chrome Finish ensures durability and corrosion resistance
Socket geometry design to grip flat sides of fastener head, not corners, preventing round-off
Meets or exceeds ANSI & DIN & ISO performance standard

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Spec Size Chart

Download All Spec Size Chart

1/4" Drive Spline Socket (mm)

Item No.	S	L(mm)	D1(mm)	D2(mm)	(g)
QCR29204	4	25	12	7.4	11
QCR292045	4.5	25	12	8	11.1
QCR29205	5	25	12	8.6	11.1
QCR292055	5.5	25	12	9.2	10.9
QCR29206	6	25	12	9.8	11.2
QCR29207	7	25	12	11	11
QCR29208	8	25	13	13	14.7
QCR29209	9	25	14	14	16.9
QCR29210	10	25	16	16	22.4
QCR29211	11	25	16	16	19.8
QCR29212	12	25	18	18	27.2
QCR29213	13	25	19	19	28
QCR29214	14	25	20	20	36

1/4" Drive Spline Socket (inch)

Item No.	S	L(mm)	D1(mm)	D2(mm)	(g)
QCR29105	5/32"	25	12	7.4	11
QCR29106	3/16"	25	12	8.2	11.1
QCR29107	7/32"	25	12	9.3	10.9
QCR29108	1/4"	25	12	10.3	11.2
QCR29109	9/32"	25	12	11.2	11
QCR29110	5/16"	25	13	13	14.7
QCR29111	11/32"	25	14	14	16.9
QCR29112	3/8"	25	14.7	14.7	22.4
QCR29114	7/16"	25	16	16	19.8
QCR29115	15/32"	25	18	18	27.2
QCR29116	1/2"	25	19	19	28
QCR29118	9/16"	25	20	20	36

3/8" Drive Spline Socket (mm)

Item No.	S	L(mm)	D1(mm)	D2(mm)	(g)
EQCR39206	6	28	17.0	10.0	23
EQCR39207	7	28	17.0	11.5	23
EQCR39208	8	28	17.0	12.7	23
EQCR39209`	9	28	17.0	14.0	24
EQCR39210	10	28	17.0	15.5	24
EQCR39211	11	28	17.0	17.0	24
EQCR39212	12	28	18.5	18.5	29
EQCR39213	13	28	20.0	20.0	31
EQCR39214	14	28	21.0	21.0	34
EQCR39215	15	28	22.0	22.2	45
EQCR39216	16	30	23.0	23.0	45
EQCR39217	17	30	25.0	24.0	59
EQCR39218	18	30	26.0	23.0	59
EQCR39219	19	30	27.0	27.0	68
EQCR39220	20	30	28.0	28.0	81
EQCR39221	21	32	30.0	30.0	81
EQCR39222	22	32	31.0	31.0	92
EQCR39223	23	32	32.0	32.0	120
EQCR39224	24	32	34.0	34.0	120

3/8" Drive Spline Socket (inch)

Item No.	S	L(mm)	D1(mm)	D2(mm)	(g)
EQCR39108	1/4"	28	17.0	10.4	23
EQCR39109	9/32"	28	17.0	11.6	23
EQCR39110	5/16"	28	17.0	12.6	24
EQCR39112	3/8"	28	17.0	15.0	24
EQCR39114	7/16"	28	17.0	17.0	29
EQCR39115	15/32"	28	18.5	18.5	29
EQCR39116	1/2"	28	20.0	20.0	31
EQCR39118	9/16"	28	21.0	21.0	34
EQCR39119	19/32"	28	22.0	22.0	45
EQCR39120	5/8"	30	23.0	23.0	45
EQCR39122	11/16"	30	25.0	25.0	59
EQCR39124	3/4"	30	27.0	27.0	68
EQCR39126	13/16"	32	29.0	29.0	81
EQCR39128	7/8"	32	31.0	31.0	82
EQCR39130	15/16"	32	33.0	33.0	120

1/2" Drive Spline Socket (mm)

Item No.	S	L(mm)	D1(mm)	D2(mm)	(g)
EQCR49208	8	38	22.2	13.8	50
EQCR49209	9	38	22.2	15.0	50
EQCR49210	10	38	22.2	16.2	51
EQCR49211	11	38	22.2	17.5	51
EQCR49212	12	38	22.2	18.7	52
EQCR49213	13	38	22.2	20.0	52
EQCR49214	14	38	22.2	21.0	52
EQCR49215	15	38	23.5	22.2	62
EQCR49216	16	38	23.5	22.2	58
EQCR49217	17	38	25.0	23.0	67
EQCR49218	18	38	26.0	23.5	73
EQCR49219	19	38	27.0	24.0	70
EQCR49220	20	38	28.0	24.0	66
EQCR49221	21	38	30.0	24.0	78
EQCR49222	22	38	31.0	26.0	90
EQCR49223	23	38	32.0	28.0	100
EQCR49224	24`	38	34.0	28.0	109
EQCR49227	27	42	37.0	30.0	145
EQCR49230	30	42	41.0	34.0	182
EQCR49232	32	42	44.0	36.0	212

1/2" Drive Spline Socket (inch)

Item No.	S	L(mm)	D1(mm)	D2(mm)	(g)
QCR49112	3/8"	38	22.2	15.7	51
QCR49114	7/16"	38	22.2	17.4	51
QCR49116	1/2"	38	22.2	19.7	52
QCR49118	9/16"	38	22.2	21.3	52
QCR49120	5/8"	38	23.5	23.5	58
QCR49122	11/16"	38	25	25	73
QCR49124	3/4"	38	27	27	70
QCR49126	13/16"	38	30	30	78
QCR49128	7/8"	38	32	32	90
QCR49130	15/16"	38	34	34	109
QCR49132	1"	42	36	36	140
QCR49134	1-1/16"	42	38	38	145
QCR49136	1-1/8"	42	40	40	175
QCR49138	1-3/16"	42	42	42	182
QCR49140	1-1/4"	42	44	44	212

Product Detail

High Torque Strength

Meets at least 1.2 times the ANSI test torque standard. Verified by a single cycle test in which torque is applied up to a specified value without failure or permanent deformation.

Fully Stepped Shoulders

Fully stepped shoulders allows better access to tight cavities.

Large Stamped Markings

Permanently roller stamp. Large on curved face of the socket.

Surface Treatment

From polish to mat, from dark to gray, and color also will be option for every product manager and designer.

Knurling, Groove, Color Ring

Groove or Color Ring and knurled base section, giving the sockets distinctive appearance and handy feeling.

Material Quality

Tien-I is a member of China Steel Corporation (CSC), the leading steel company in Taiwan.

Contact Tien-i

In order to purchase or customize products, and learn more information about your MOQ deal.
Contact Tien-i service center to start your purchase procedure.

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Ｑ＆Ａ

What is the popular size of chrome sockets?

Tien-I is a manufacoturer at professional designing tool kit and producing OEM/ODM products.

Is the bit head magnetic?

Please provide the sample or the photo for us reference to see which bits you ask for.

What is the popular size of impact sockets?

What kind of tool kit do you want? And what’s the sales territory? Different countries have different popular sizes. Welcome to send us an email for further discussion. .

What is the popular size of chrome sockets?

What kind of tool kit do you want? And what’s the sales territory? Different countries have different popular sizes. Welcome to send us an email for further discussion.

What is the difference between impact socket and chrome socket? Why is CR-V material not suitable at producing impact sockets?

Tien-i's hand sockets are made of Cr-V steel (CR-V).

Compared with the raw material "CR-V" for hand sockets, the raw material for pneumatic sockets, CR-MO, has stronger toughness, i.e. stronger shock resistance. Suitable for use with air and electric guns. CR-V steel (CR-V) has higher hardness, but in the need for shock-resistant use environment will lead to reduced service life.

to know more about hand socket and impact socket